Bug ID 700957: DNAT performance drops up to 50% when a second blade is added

Last Modified: Apr 28, 2025

Affected Product(s):
BIG-IP CGN(all modules)

Known Affected Versions:
14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1

Fixed In:
14.1.0

Opened: Jan 05, 2018

Severity: 2-Critical

Symptoms

When a second blade is added to a chassis, excessive memory and CPU utilization may be observed.

Impact

Fewer concurrent connections are supported in a two bladed system then when using a single blade.

Conditions

A high number of concurrent connections using a LSN pool configured in deterministic mode.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips